import React, {Component} from 'react';
import store from '../../redux/store'
import {Button} from 'antd';
import {createDecrementAction, createIncrementAction, createIncrementAsyncAction} from '../../redux/count_action'

class Count extends Component {


    increment = () => {
        const {value} = this.selectNumber
        store.dispatch(createIncrementAction(value * 1))
    }
    decrement = () => {
        const {value} = this.selectNumber
        store.dispatch(createDecrementAction(value * 1))
    }
    incrementIfOdd = () => {
        const {value} = this.selectNumber
        const count = store.getState()
        if (count % 2 !== 0) {
            store.dispatch(createIncrementAction(value * 1))
        }
    }

    incrementAsync = () => {
        const {value} = this.selectNumber
        store.dispatch(createIncrementAsyncAction(value * 1, 200))
    }


    render() {
        return (
            <div style=
                     {{
                         display: 'flex',
                         justifyItems: 'center',
                         justifyContent: 'center',
                         alignItems: 'center',
                         flexDirection: 'column'
                     }}>
                <div>
                    <h4>当前求和为:{store.getState()}</h4>
                </div>
                <div style={{margin: '10px 0 '}}>
                    <select ref={c => this.selectNumber = c}>
                        <option value="1">1</option>
                        <option value="2">2</option>
                        <option value="3">3</option>
                        <option value="4">4</option>
                    </select>&nbsp;
                </div>
                <div>
                    <Button type="primary" onClick={this.increment}>+</Button>
                    &nbsp;
                    <Button type="primary" onClick={this.decrement}>-</Button>
                    &nbsp;
                    <Button type="primary" onClick={this.incrementIfOdd}>当前就和为奇数加</Button>
                    &nbsp;
                    <Button type="primary" onClick={this.incrementAsync}>异步加</Button>
                    &nbsp;
                </div>
            </div>
        );
    }
}

export default Count;